if ~exist('tal')
    [FileName,PathName,FilterIndex] = uigetfile('','open batch file');
    tal = open([PathName FileName]);
    tal = tal.Batch.talairachData;
end

[FileName,PathName,FilterIndex] = uigetfile('*.txt','open data points file');
in = importdata([PathName FileName]);
mri_points = zeros(size(in));
tal_points = zeros(size(in));
for i=1:length(in)
    mri_points(i,:) =  
    
end
